关键词: 工艺矿物学, 金矿石, 扫描电镜

Abstract: In order to develop and utilize ore resources more efficiently，the process mineralogy of a gold ore in Henan Province was studied by means of microscope and scanning electron microscope，supple⁃ mented by X-ray diffraction analysis technology and chemical analysis，and its structural，mineral composi⁃ tion，gold occurrence state and other process mineralogy characteristics were identified. The test results show that the useful minerals of the ore are mainly natural gold，and a small amount is silver-containing nat⁃ ural gold. The average content of natural gold is more than 98%，which is coarse-to-giant gold. The gold�bearing minerals are mainly quartz and limonite. In addition，a small amount of mica and other minerals are associated with natural gold. Further evaluation of gold ore can provide theoretical basis and practical refer⁃ ence for later beneficiation，smelting and comprehensive utilization.

Key words: process mineralogy, gold ore, scanning electron microscopy